Projectile.



E. J. HILL.

PROJEGTILE.

(Applicatim; filed. Mar. 29, 1901.)

No. 7H,209. Patented Oct. I4, I902.

model.)

ma NORRIS PETERS coy, FHOTO-LITHQ, WASHINGTON, I: c.

UNITED STATES PATENT OFFICE.

EDWARD J. HILL, OF KALKASKA, MICHIGAN.

PROJECTILE.

SPECIFICATION formingpart of Letters Patent N 0. 71 1,209, dated October 14, 1902.

Application filed March 29, 1901. Serial No. 53.539- (ModeL) To all whom it may concern.-

Be it known that I, EDWARD J. HILL,of Kalkaska, in the county of Kalkaska and State of Michigan, haveinvented certain new and useful Improvements in Projectiles, commonly called Rifle-Bullets,forUsein Rifled Guns, of which the following is a specification.

My invention relates to projectiles called rifle-bullets, used in rifles and rifled guns.

Myimprovement consists ininsertingtransversely in the body of the projectile a disk of relatively harder metal than the body thereof. The body of the projectile is conical in shape and is made of lead. The disk may be made of copper,and I sometimes use more than one copper disk, the number of which is determined by the twist of the rifling in the gun. By this arrangement I secure, first, decreased friction on the riding of the gun; second, a greater rotary movement of the projectile than when the projectile is made of lead alone; third, a greater expansion of the projectile when fired into a dense substance, consequently greater destructive power to life; fourth, the copper disk prevents fouling of the gun by removing the particles of lead from the grooves of the gun and insures the rotary movement of the projectile.

In the accompanying drawing, illustrating an embodiment of my invention, the figure thereof is a perspective view.

In the drawing, A represents the copper disk. The anterior and posterior portions of said projectile are of lead and are marked, respectively, a and d.

What I claim, and wish to secure by Let 

